diff --git a/requirements/test.txt b/requirements/test.txt
index 344ef19..fb29dba 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -5,3 +5,4 @@ codecov
 black
 flake8
 mypy
+types-dataclasses;python_version<'3.7',
diff --git a/setup.py b/setup.py
index 90f8ae5..656ccba 100644
--- a/setup.py
+++ b/setup.py
@@ -18,6 +18,7 @@
     "black",
     "flake8",
     "mypy",
+    "types-dataclasses;python_version<'3.7'",
 ]
 required = ["repobee>=3.0.0-beta.1"]